Počet záznamů: 1
Solar Radio Burst Associated with the Falling Bright EUV Blob
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SYSNO ASEP 0495334 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Článek ve WOS Název Solar Radio Burst Associated with the Falling Bright EUV Blob Tvůrce(i) Karlický, Marian (ASU-R) RID, ORCID
Zemanová, Alena (ASU-R) ORCID, RID
Dudík, Jaroslav (ASU-R) RID, ORCID
Radziszewski, K. (PL)Číslo článku L29 Zdroj.dok. Astrophysical Journal Letters. - : Institute of Physics Publishing - ISSN 2041-8205
Roč. 854, č. 2 (2018)Poč.str. 6 s. Forma vydání Online - E Jazyk dok. eng - angličtina Země vyd. US - Spojené státy americké Klíč. slova plasmas ; Sun flares ; radio radiation Vědní obor RIV BN - Astronomie a nebeská mechanika, astrofyzika Obor OECD Astronomy (including astrophysics,space science) CEP GA16-13277S GA ČR - Grantová agentura ČR GA17-16447S GA ČR - Grantová agentura ČR Institucionální podpora ASU-R - RVO:67985815 UT WOS 000426055900002 EID SCOPUS 85047743795 DOI 10.3847/2041-8213/aaadf9 Anotace At the beginning of the 2015 November 4 flare, in the 1300-2000 MHz frequency range, we observed a very rare slow positively drifting burst. We searched for associated phenomena in simultaneous EUV observations made by IRIS, SDO/AIA, and Hinode/XRT, as well as in H-alpha observations. We found that this radio burst was accompanied with the bright blob, visible at transition region, coronal, and flare temperatures, falling down to the chromosphere along the dark loop with a velocity of about 280 km s(-1). The dark loop was visible in H-alpha but disappeared afterward. Furthermore, we found that the falling blob interacted with the chromosphere as expressed by a sudden change of the H-alpha spectra at the location of this interaction. Considering different possibilities, we propose that the observed slow positively drifting burst is generated by the thermal conduction front formed in front of the falling hot EUV blob. Pracoviště Astronomický ústav Kontakt Radka Svašková, bibl@asu.cas.cz, Tel.: 323 620 326 Rok sběru 2019
Počet záznamů: 1